ARCHERY DRAW STOP SYSTEM AND METHOD
An archery draw stop system and method are disclosed herein. The archery draw stop system, in an embodiment, includes a limb engager configured to be mounted to a limb portion of a limb of an archery bow. The archery draw stop system also has a draw stopper portion configured to engage a member that is coupled to a rotary of the archery bow.
Latest Perfect Form Manufacturing LLC Patents:
This application is a non-provisional of, and claims the benefit and priority of, U.S. Provisional Patent Application No. 62/444,529 filed on Jan. 10, 2017. The entire contents of such application are hereby incorporated by reference.
BACKGROUNDCams have been used on compound bows for some time. Cam assemblies are designed to yield efficient energy transfer from the bow to the arrow. Some compound bows have opposing limbs, extending from a handle portion, that support the cam assemblies. Typically, each cam assembly is rotatably mounted on an axle which is then mounted on the applicable limb of the bow. Compound bows have a bowstring attached to the cam which sits in a track and also, typically, two power cables that each sit in a track on a separate module of the cam. The power cables are anchored to the cam, a limb or an axle. When the bowstring is pulled to full draw position, the cam is rotated, and the power cables are “taken up” on their respective ends to increase energy stored in the bow for later transfer, with the opposing ends “let out” to provide some give in the power cable.
Most compound bows are outfitted with either single cam systems or dual cam systems, and are set to accommodate a specific draw length for a given user. The draw length can be determined as the distance at full draw between the nocking point of the arrow on the bowstring to the back of the handle grip on the bow. Each user can customize the user's particular draw length to accommodate the user's unique arm span, body size and shooting preferences.
Some cam assemblies include a cam-mounted draw stop (e.g., a pin stop) that provides a stopping location in the draw cycle of the bowstring. The stopping location is intended to correspond to the user's predetermined draw length so that the user does not retract the bowstring beyond the predetermined draw length.
This known cam-mounted draw stop is designed to be directly fastened to the cam. As the cam rotates, the cam-mounted draw stop contacts the applicable limb, causing the cam to stop rotating. Certain cam-mounted draw stops can be repositioned on the cam to adjust the draw length setting. In such design, the cam defines an arc-shaped slot, and the user can slide the cam-mounted draw stop in such slot until reaching a desired position.
However, relying entirely upon these cam-mounted draw stops can have several disadvantages. For example, it can be difficult to control micro or fine adjustments of the cam-mounted draw stop in such arc-shaped slot. In addition, the collision of the cam-mounted draw stop with the limb surface can damage or otherwise induce wear on the surface of the limb.
The foregoing background describes some, but not necessarily all, of the problems, disadvantages and shortcomings related to the known draw stop approaches for archery bows.
SUMMARYIn an embodiment, the archery draw stop system includes a body having a limb engager configured to be mounted to a limb portion of a limb of an archery bow. The limb engager defines an opening, and the limb portion extends along an axis. The limb portion has an end wall. The archery draw stop system also has a draw stopper portion configured to contact a member that is coupled to a rotary of the archery bow wherein the rotary is coupled to the limb. Also, the archery draw stop system has a stabilizer configured to engage the end wall of the limb portion to inhibit movement of the limb engager relative to the axis. The archery draw stop system includes a limb coupler configured to be inserted through the opening to couple the limb engager to the limb.
In another embodiment, the archery draw stop system includes: (a) a limb engager configured to be mounted to a limb portion of a limb of an archery bow, wherein the limb portion defines an opening; (b) a draw stopper portion configured to engage a member that is coupled to a rotary of the archery bow, wherein the rotary is coupled to the limb and configured to support a draw cord; and (c) a limb coupler configured to be inserted through the opening to couple the limb engager to the limb portion.
In yet another embodiment, a method for manufacturing an archery draw stop system includes: (a) structuring a limb engager so that the limb engager is configured to be mounted to a limb portion of a limb of an archery bow; and (b) structuring a draw stopper portion so that the draw stopper portion is configured to engage a member that is coupled to a rotary of the archery bow, wherein the rotary is coupled to the limb and configured to support a draw cord.
Additional features and advantages of the present disclosure are described in, and will be apparent from, the following Brief Description of the Drawings and Detailed Description.
The archery bow 2 also includes a riser 16. A limb 18, 20 is coupled to each end of the riser 16. Referring to
In an embodiment, the supplemental cord set 30 has a plurality of supplemental cord segments 32, 34 arranged to cross each other in an X-fashion, as shown in
As illustrated in
The bow 2 is operable in a full draw cycle or full cycle. The full cycle of bow 2 starts with a brace, release or undrawn condition A (
In the undrawn condition A (
In the drawn condition B (
Referring to
In an embodiment, each user of bow 2 can have a different, predetermined draw length 82 associated with the user's unique arm span and body size. The rotary-mounted draw stop 80 enables the user to make a primary adjustment in an effort to set the maximum draw length 82 to coincide with the point at which the rotaries 22, 24 provide the greatest reduction in force (i.e., “let off”) necessary to pull back the draw cord 36.
Referring to
In the embodiment illustrated in
The limb engager 54 also defines an opening or through hole 86 extending through the limb engager 54. Also, the archery draw stop system 44, in an embodiment, includes a limb coupler 104, such as a threaded screw, bolt or pin. The limb coupler 104 is configured to be inserted through the opening 86 to fasten, mount or otherwise couple the limb engager 54 to the limb portion 62. In the embodiment shown in
The body 46 additionally has a draw stopper pad or draw stop surface 110 (
In the embodiment illustrated in
In another embodiment, neither of the rotaries 22, 24 include any rotary-mounted draw stops 80. Instead, rotary 22, for example, includes a portion or member (not shown) that projects from the rotary face 25 (
In another embodiment, the archery draw stop system 44 includes a kit of differently sized bodies. Such body kit enables the user to establish a supplemental or secondary draw stop setting for the bow 2 after the primary adjustment of the rotary-mounted draw stop 80. For example, such kit can include: (a) body 46 having height 48 (
In an embodiment, a duel draw stop system (not shown) includes the body kit described above, the rotary-mounted draw stop 80, and the rotary-based stop track 74. In this embodiment, the user can primarily adjust the draw length by repositioning the rotary-mounted draw stop 80 within the rotary-based stop track 74. Then, the user can secondarily adjust such draw length, for fine-tuning or micro-tuning purposes, by selecting one of a set of differently-sized bodies (such as body 46) and attaching the selected body to the bow 2. In doing so, the body height 48 (
Another embodiment includes a limb-mountable, adjustable archery draw stop system 112, as illustrated in
The body 116 also defines a body cavity 118 (
The adjustable archery draw stop system 112 includes a driver 164 rotatably coupled to the body 116. In this embodiment, the driver 164 extends along the axis 142 and is threadably engaged with the body 116. The distal end (not shown) of the driver 164 is located within the cavity 118 (
It should be appreciated that, in another embodiment, the adjustable archery draw stop system 112 is operable to adjust the draw length of a bow without including or relying upon the rotary-mounted draw stop 80 or the rotary-based stop track 74. For example, the archery draw stop system 112 can be operable to contact any suitable portion or member (not shown) that projects from the rotary face 25 (
In other embodiments, an adjustable archery draw stop system can include a body 46 or 116 in combination with any suitable component configured to be moveably coupled to such body 46, 116. By adjusting the position of such component relative to the body 46, 116 and/or limb 18, 20, the body 46, 116 (or a portion thereof) can undergo a change in height relative to the limb surface 166 (
In an embodiment illustrated in
In an embodiment, the base 214 defines a pilot hole or opening 220 configured to receive the limb coupler 217. Though the limb coupler 217 is illustrated as a threaded screw, it should be appreciated that the limb coupler 217 can include any suitable, screw, bolt, pin or other suitable fastener. A user can attach the base 214 to the limb portion 212 by placing the base 214 on the limb portion 212 and then inserting the limb coupler 217 through the opening 220 and into the threaded hole or opening 222 of the limb portion 212. After rotating the limb coupler 217, the base 214 will be mounted to the limb portion 212. In an embodiment, the base 214 has a hook portion or stabilizer 224 that extends to engage the end wall 226 of the limb portion 212. As described in other embodiments above, the stabilizer 224 enhances the securement and stationary seating of the base 214 on the limb portion 212. The base 214 also defines a threaded hole or opening 228 and an extension, tab or lip 230.
Referring to
A user can attach the draw stopper 216 to the base 214 by sliding the draw stopper 216 along the base 214 until the base 214 is inserted into the lower cavity 242 and the lip 230 protrudes beyond the intermediate floor 240, as illustrated in
As illustrated in
Another embodiment includes the base 214 that is usable in conjunction with a set or a kit of a plurality of different draw stoppers, including the draw stopper 216. Each of the draw stoppers in the kit has the same structure, elements and function as the draw stopper 216 except that the heights of the draw stoppers vary. For example, height 234 of the draw stopper 216 may be 0.060 inches, height X of another draw stopper in the kit may be 0.030 inches, and height Y of yet another draw stopper in the kit may be 0.50 inches. The kit of draw stoppers enables the user to easily adjust the draw stop setting by replacing one installed draw stopper with another one. The replacement process is convenient in that it involves unscrewing of a coupler and sliding out of the draw stopper.
In another embodiment illustrated in
In an embodiment, the base 314 defines a pilot hole or opening 320 configured to receive the limb coupler 317. Though the limb coupler 317 is illustrated as a threaded screw, it should be appreciated that the limb coupler 317 can include any suitable, screw, bolt, pin or other suitable fastener. A user can attach the base 314 to the limb portion 312 by placing the base 314 on the limb portion 312 and then inserting the limb coupler 318 through the opening 320 and into the threaded hole or opening 322 of the limb portion 312. After rotating the limb coupler 317, the base 314 will be mounted to the limb portion 312. As illustrated in
In addition, as illustrated in
Referring to
In an embodiment, each of the slots 332 is associated with a different draw stop setting for the rotary 24. For example, as illustrated in
A user can attach the draw stopper 316 to the base 314 by first selecting a desirable one of the slots 332. Next, the user slides the draw stopper 316 onto the base 314 by inserting the linear protrusions 350, 352 into the selected slot 332 on the base side 328 and by inserting the linear protrusions 354, 356 into the selected slot 332 on the base side 330. Next, the user inserts one of the stopper couplers 318 through the adjustment opening 346 and into the threaded opening 334 (
If, for example, the user desires to change the draw stop setting from the relatively high setting shown in
As described above, there are several advantages of the limb-mounted archery draw stop systems 44, 112, 210, 310 and the duel draw stop system described above, including, but not limited to: (a) providing the user with enhanced control over the micro-level adjustment of the draw stop setting of the bow 2; (b) easing the process for adjusting the draw stop setting; (c) protecting the limb surface 166 from direct contact with rotaries 22, 24, draw stop members 80 and rotary members; and (d) changing (e.g., decreasing by 10%) the force let-off during the drawback of the draw cord 36. Such systems also lessen design constraints on rotary and module designs. Such easing of design constraints results in a more cost effective approach for stopping the draw. In addition, such systems provide enhanced stability and ease of use, in part, because they are supported by bow limbs instead of or in addition to rotaries. Depending upon the embodiment, such systems can also reduce weight-related problems and off-center loading problems associated with complete reliance on rotary-based draw stops. Further, such systems can more readily accommodate various limb configurations than a typical rotary-mounted draw stop and enable the users to have greater control over fine-tuning and micro adjustments of the draw stop setting, as described above.
Additional embodiments include any one of the embodiments described above, where one or more of its components, functionalities or structures is interchanged with, replaced by or augmented by one or more of the components, functionalities or structures of a different embodiment described above.
It should be understood that various changes and modifications to the embodiments described herein will be apparent to those skilled in the art. Such changes and modifications can be made without departing from the spirit and scope of the present disclosure and without diminishing its intended advantages. It is therefore intended that such changes and modifications be covered by the appended claims.
Although several embodiments of the disclosure have been disclosed in the foregoing specification, it is understood by those skilled in the art that many modifications and other embodiments of the disclosure will come to mind to which the disclosure pertains, having the benefit of the teaching presented in the foregoing description and associated drawings. It is thus understood that the disclosure is not limited to the specific embodiments disclosed herein above, and that many modifications and other embodiments are intended to be included within the scope of the appended claims. Moreover, although specific terms are employed herein, as well as in the claims which follow, they are used only in a generic and descriptive sense, and not for the purposes of limiting the present disclosure, nor the claims which follow.
Claims
1. An archery draw stop system comprising:
- a body comprising: a limb engager configured to be mounted to a limb portion of a limb of an archery bow, wherein the limb engager defines an opening, wherein the limb portion extends along an axis, and the limb portion comprises an end wall; a draw stopper portion configured to contact a member that is coupled to a rotary of the archery bow, wherein the rotary is coupled to the limb; a stabilizer configured to engage the end wall of the limb portion to inhibit movement of the limb engager relative to the axis; and
- a limb coupler configured to be inserted through the opening to couple the limb engager to the limb.
2. The archery draw stop system of claim 1, wherein the member is integral with the rotary.
3. The archery draw stop system of claim 1, wherein the member comprises a stop member that is adjustably coupled to the rotary.
4. The archery draw stop system of claim 1, wherein the body extends along a body axis that is parallel to the axis.
5. The archery draw stop system of claim 1, wherein the draw stopper portion defines a cavity.
6. The archery draw stop system of claim 1, wherein:
- the limb engager comprises an end; and
- the stabilizer extends from the end.
7. The archery draw stop system of claim 6, wherein:
- the body extends along a body axis that is parallel to the axis;
- the body axis extends in a first plane; and
- the stabilizer extends in a second plane that intersects with the first plane.
8. The archery draw stop system of claim 6, wherein the draw stopper portion comprises a dimension associated with a draw length.
9. The archery draw stop system of claim 1, wherein the draw stopper portion defines a cavity configured to at least partially receive a contact member, wherein the contact member comprises a draw stopper surface.
10. The archery draw stop system of claim 9, comprising a driver that is operatively coupled to the contact member, wherein the driver is configured to cause the contact member to move relative to the body in response to an adjustment of the driver.
11. An archery draw stop system comprising:
- a limb engager configured to be mounted to a limb portion of a limb of an archery bow, wherein the limb portion defines an opening;
- a draw stopper portion configured to engage a member that is coupled to a rotary of the archery bow, wherein the rotary is coupled to the limb and configured to support a draw cord; and
- a limb coupler configured to be inserted through the opening to couple the limb engager to the limb portion.
12. The archery draw stop system of claim 11, comprising a stabilizer configured to engage an end of the limb portion.
13. The archery draw stop system of claim 11, wherein:
- the limb portion extends along an axis;
- the limb portion comprises an end wall;
- the stabilizer is configured to engage the end wall of the limb portion to inhibit movement of the limb engager relative to the axis.
14. The archery draw stop system of claim 11, wherein the member is integral with the rotary.
15. The archery draw stop system of claim 11, wherein the member comprises a stop member that is adjustably coupled to the rotary.
16. The archery draw stop system of claim 11, wherein the draw stopper portion and the limb portion each extend along a common axis.
17. A method for manufacturing an archery draw stop system, the method comprising:
- structuring a limb engager so that the limb engager is configured to be mounted to a limb portion of a limb of an archery bow; and
- structuring a draw stopper portion so that the draw stopper portion is configured to engage a member that is coupled to a rotary of the archery bow, wherein the rotary is coupled to the limb and configured to support a draw cord.
18. The method of claim 17, wherein:
- the limb portion defines an opening;
- the method comprises structuring a stabilizer so that the stabilizer is configured engage an end of the limb portion; and
- the method comprises structuring a limb coupler so that the limb coupler is configured to be inserted through the opening to couple the limb engager to the limb portion.
19. The method of claim 17, wherein:
- the limb portion extends along an axis;
- the limb portion comprises an end wall;
- the method comprises structuring the stabilizer so that the stabilizer is configured to engage the end wall of the limb portion to inhibit movement of the limb engager relative to the axis.
20. The method of claim 19, wherein:
- the axis comprises a limb axis;
- the draw stopper portion extends along the limb axis;
- the limb axis extends in a first plane; and
- the method comprises structuring the stabilizer so that the stabilizer extends in a second plane that intersects with the first plane.
Type: Application
Filed: Jan 10, 2018
Publication Date: Jul 12, 2018
Patent Grant number: 10274282
Applicant: Perfect Form Manufacturing LLC (West Henrietta, NY)
Inventor: Michael W. Derus (Victor, NY)
Application Number: 15/867,156